KR20180001140U - mutli-purpose ventilation unit - Google Patents

Abstract

The composite heat exchanging ventilator according to the present invention comprises an outdoor air suction port and an indoor air discharge port on the outdoor side, an indoor air suction port and an outdoor air supply port on the indoor side, an outdoor air suction space communicating with the outdoor air suction port, An internal air discharge space communicating with the internal air discharge port, an internal air suction space communicating with the internal air suction port, and an external air supply space communicating with the external air supply port; A heat exchanger provided in the case; A suction blower that sucks outdoor air into the case and supplies the outdoor air to the indoor side; an exhaust blower that sucks indoor air into the case and discharges the outdoor air to the outdoor side; A bypass cover which is disposed below the heat exchanger in the case and constitutes a bypass flow path in which the inside air suction port and the inside air discharge port communicate with each other without passing through the heat exchanger; Bypass means for selectively allowing the inside air intake port and the bypass passage to communicate with each other; And an intermediate damper provided between the outside air suction space and the inside air discharge space in the case to selectively allow the outside air suction space and the inside air discharge space to communicate with each other.
Wherein the bypass means is provided in the inside air suction space in the case and communicates the inside air suction port, the bypass air passage and the inside air suction space, and the chamber is disposed in the chamber, And a flow path switching damper for selectively allowing the space and the bypass flow path to communicate with each other.
The composite heat exchanging ventilator according to the present invention further comprises a fine dust measuring sensor for measuring the concentration of fine dust contained in the outdoor air sucked into the case and a sensor for measuring the concentration of the harmful gas contained in the room air sucked into the case A fine dust filtration filter for filtering fine dust contained in the outdoor air sucked in the outside air suction space and filtering the air supplied to the room through the heat exchanger provided in the outside air supply space in the case; And a high-performance filter.
According to the present invention, since the flow resistance of the air flowing through the bypass flow passage does not greatly increase, the energy consumption due to the pressure loss can be minimized. In addition, it is possible to selectively use the ventilation mode, the bypass mode and the recirculation mode according to the user's choice, and each mode is automatically switched according to the pollution degree of the indoor / outdoor air, which is a great help to improve the sanitary condition and comfort of the residential environment .

Description

A mutli-purpose ventilation unit

The present invention is applicable to a ventilation mode in which a heat exchange function is performed, a bypass mode in which no heat exchange action is performed, and a recirculation mode (purification mode) in which indoor air is circulated and purified, And the respective modes are automatically switched.

In general, various types of ventilation devices have been used to discharge the air in the room to the outside and to supply fresh air to the room outside.

Meanwhile, in the summer and winter season, when the temperature difference between indoor and outdoor is large, it is common to operate cooling and heating to maintain a comfortable temperature of the indoor space. When the outdoor air is directly introduced into the room by the ventilator, The efficiency of the cooling and heating is lowered, so that the waste of energy is considered to be severe.

In order to alleviate this problem to some extent, a so-called heat exchange type ventilator is used in which the increase in the cooling / heating load due to the temperature difference is reduced by allowing heat exchange with the room air to be discharged before the outdoor air is introduced into the room.

A conventional conventional heat exchange type ventilator includes a case forming an internal space, an outside air suction port and an inside air discharge port provided on the outdoor side of the case, an outside air supply port and an inside air suction port provided on the inside side of the case, A heat exchanger and a plurality of blowing fans.

Here, the meaning of each port name is as follows.

1) Outside air intake port (OA port): Port in which outdoor air is sucked into the case

2) Emission exhaust port (EA port): The port where the indoor air sucked into the case is discharged outdoors

3) External air supply port (SA port): The port where outdoor air sucked into the case is supplied to the room

4) Vent Suction Port (RA port): The port where the room air is sucked into the case

Such a conventional heat exchange type ventilator basically has a configuration in which a so-called intake flow path leading from an outside air intake port to an outside air supply port and an exhaust flow path from the inside air intake port to the inside air exhaust port intersect in a heat exchanger in the case.

Therefore, in the season in which cooling is performed in the indoor space as in the summer season, the outdoor hot air flowing into the indoor side through the intake flow path is heat-exchanged with the cold air in the room exhausted to the outdoor side through the exhaust flow path, Lt; / RTI >

On the other hand, in the season when the indoor heating operation is performed as in the winter season, the outdoor outdoor air flowing into the indoor side through the intake flow path is heat-exchanged with the warm air in the indoor space discharged to the outdoor side through the exhaust flow path, ≪ / RTI >

Accordingly, it is possible to reduce the heating loss by increasing the temperature of outdoor air flowing into the indoor space in winter, and reduce the cooling loss by lowering the outdoor air temperature flowing into the indoor space in summer.

On the other hand, in the spring period such as early spring or late summer, since the temperature condition of the outdoor air forms a temperature that is better for living than the temperature condition of the indoor air, a method for introducing the outside air as it is, Exchanging type ventilator of the present invention has a problem in that the outdoor air and the indoor air are forcibly heat-exchanged and thus can not satisfy these requirements.

To solve this problem, a so-called bypass type heat recovery ventilation system having a bypass flow path has been developed.

The conventional bypass type heat exchange ventilator constitutes a bypass flow path extending from the external air suction port to the external air discharge port inside or outside the case without passing through the heat exchanger so that the outside air intake port and the bypass flow path are selectively communicated And a damper which is provided in the housing.

According to this prior art, the bypass mode in which the heat exchange flow path is opened and the bypass flow path is closed, the bypass mode in which the heat exchange flow path is closed and the bypass flow path is opened is selectively switched by the operation of the damper, so that forced heat exchange can be avoided .

As an example of such a bypass type ventilator, there is the prior art 1 (patent registration No. 10-1117523, the applicant, Sung Sung Chemical Co., Ltd.).

According to the prior art 1, when the bypass mode is selected, the internal air introduced into the casing of the body 44 of the bypass unit 40 through the ventilation port 15a (internal air intake port) 44a and the second space 44b and is bent in the vertical direction while continuing to the lower portion of the flow path forming portion 20 in the second space 44b.

Therefore, according to the conventional technology, when the bypass mode is selected, much resistance is generated in the flow of the indoor air discharged from the indoor side, thereby reducing the ventilation efficiency.

Recently, the density of dust and fine dust is gradually increasing, and it can be considered as a way to prevent indoor air pollution by preventing the outside air from entering into the room when the concentration of fine dust is high.

However, if the state without ventilation is continued, the phenomenon that the fine dust generated in the room floats and the concentration of the carbon dioxide in the room is increased, and in particular, the harmful gas generated by the use of the gas cooking apparatus is not discharged, Air pollution is accelerated.

In order to solve such a problem, there has been found a ventilating apparatus having a circulating function for purifying indoor air without ventilation, and as an example thereof, there is a prior art 2 (Patent Registration No. 10-0690987, filed by the applicant).

According to the prior art 2, in addition to the existing heat exchange function, the harmful components causing the sick house syndrome are filtered by the filter unit during the circulation of the indoor air, thereby improving the cleanliness of the indoor air. Filtration is also considered possible.

However, according to the related art 2, it is necessary to replace the heat exchanger with a filter unit in order to circulate the indoor air. The operation of replacing and installing the heat exchanger and the filter unit as needed is very troublesome, There is a problem in that the effectiveness is not high because it is very difficult to accurately determine the replacement timing of the parts.

The present invention is intended to solve the problems of the prior art as described above, and it is possible to selectively use the ventilation mode, the bypass mode, and the recirculation mode according to the user's choice since the flow resistance of the air is not large at the time of using the bypass mode. And to provide a composite heat exchange ventilator in which each mode is automatically switched in accordance with the degree of contamination of indoor and outdoor air.

According to an aspect of the present invention, there is provided a combined heat exchange ventilator comprising an outdoor air suction port and an indoor air discharge port on an outdoor side, an indoor air suction port and an outdoor air supply port on an indoor side, A case which constitutes therein an outside air supply space communicating with the outside air supply port; a case which constitutes an outside air supply space communicating with the inside air supply port; A heat exchanger provided in the case; A suction blower that sucks outdoor air into the case and supplies the outdoor air to the indoor side; an exhaust blower that sucks indoor air into the case and discharges the outdoor air to the outdoor side; A bypass cover which is disposed below the heat exchanger in the case and constitutes a bypass flow path in which the inside air suction port and the inside air discharge port communicate with each other without passing through the heat exchanger; Bypass means for selectively allowing the inside air intake port and the bypass passage to communicate with each other; And an intermediate damper provided between the outside air suction space and the inside air discharge space in the case to selectively allow the outside air suction space and the inside air discharge space to communicate with each other.

Wherein the bypass means is provided in the inside air suction space in the case and communicates the inside air suction port, the bypass air passage and the inside air suction space, and the chamber is provided in the chamber, And a flow path switching damper for selectively allowing the space and the bypass flow path to communicate with each other.

The composite heat exchanging ventilator according to the present invention further comprises a fine dust measuring sensor for measuring the concentration of fine dust contained in the outdoor air sucked into the case and a sensor for measuring the concentration of the harmful gas contained in the room air sucked into the case A fine dust filtration filter for filtering fine dust contained in the outdoor air sucked in the outside air suction space and filtering the air supplied to the room through the heat exchanger provided in the outside air supply space in the case; And a high-performance filter.

As described above, according to the present invention, the optimized air flow method for each mode is applied. In particular, since the flow resistance of the air does not increase due to the use of the bypass flow path during recirculation, Thereby minimizing energy consumption. In addition, it is possible to selectively use the ventilation mode, the bypass mode and the recirculation mode according to the user's choice, and each mode is automatically switched according to the pollution degree of the indoor / outdoor air, which is a great help to improve the sanitary condition and comfort of the residential environment .

1 is a perspective view showing the internal structure of the composite heat exchange ventilator according to the present invention;
2A is an exemplary view showing a ventilation mode state of the bypass means applied to the present invention;
Fig. 2b is an illustration showing the air flow in the ventilation mode of the bypass means applied to the present invention; Fig.
Fig. 3A is an exemplary diagram showing the bypass mode state of the bypass means applied to the present invention; Fig.
Fig. 3B is an illustration showing the air flow in the bypass mode of the bypass means applied to the present invention
Fig. 4A is an exemplary view showing an air flow in the ventilation mode of the composite heat exchange ventilator according to the present invention; Fig.
Fig. 4B is a view showing the air flow in the bypass mode of the composite heat exchange ventilator according to the present invention. Fig.
Fig. 4c is a view showing an air flow in the recirculation mode of the composite heat exchange ventilator according to the present invention; Fig.

Hereinafter, specific details for carrying out the present invention will be described in detail with reference to the accompanying drawings 1 to 4c.

As shown in FIG. 1, the combined heat exchange ventilator according to the present invention is provided with an outside air suction port 12 and an inside air discharge port 14a on the outdoor side, and has an indoor air suction port 16 and an outdoor air supply port 18 (A case 10 provided with a door); A heat exchanger (20) provided in the case (10); A suction blower 22 for sucking outdoor air into the case 10 and supplying the indoor air to the indoor side, an exhaust blower 24 for sucking indoor air into the case 10 and discharging the indoor air to the outdoor side; A bypass flow path 30a formed below the heat exchanger 20 in the case 10 to allow the inside air suction port 16 and the inside air discharge port 14 to communicate with each other without passing through the heat exchanger 20, A bypass cover 30 which constitutes the bypass cover 30; Bypass means for selectively allowing the inside air suction port (16) and the bypass passage (30a) to communicate with each other; (Not shown) provided between the outside air suction space 12a and the inside air discharge space 14a, which will be described later in the case 10, to selectively allow the outside air suction space 12a and the inside air discharge space 14a to communicate with each other And a damper (40).

An outside air suction space 12a communicating with the outside air suction port 12, an inside air discharge space 14a communicating with the inside air discharge port 14, an inside air suction port 16 communicating with the inside air discharge port 14, An air suction space 16a communicating with the outside air supply port 18 and an outside air supply space 18a communicating with the outside air supply port 18. [

Here, the inside air suction space 16a and the outside air supply space 18a are partitioned so as not to communicate with other spaces on the arrangement structure of the heat exchanger 20, and the outside air suction space 12a and the inside air discharge space 14a And is selectively communicated by the intermediate damper 40 as described above.

The outside air suction port 12 and the inside air discharge port 14 are provided with an opening / closing damper (not shown) capable of selectively blocking the flow of air.

The bypass means is provided in the internal air suction space 16a in the case 10 so as to selectively connect the internal air suction port 16 to the bypass flow path 30a and the internal air suction space 16a A chamber 32, and a flow path switching damper 34 provided in the chamber 32.

The chamber 32 is bent downward from the suction suction port 16 and connected to the bypass flow passage 30a. More specifically, the front face of the chamber 32 communicates with the suction suction port 16 in the case 10 And the upper part of the rear surface is opened to communicate with the suction air space 16a and the lower end communicates with the bypass path 30a in contact with the bypass cover 30. [

The flow path switching damper 34 has a structure in which the upper end of the flow path switching damper 34 is hingedly connected to the rear surface of the chamber 32 and rotates up and down. The operation of the flow path switching damper 34 is controlled by a driving motor 36 provided outside the chamber 32 (See Figs. 2A and 3A)

The intermediate damper 40 is illustratively a frame type frame 42 interposed between one side edge of the heat exchanger 20 and the inner surface of the case 10 and a frame 40 mounted on the frame type frame 42, And the door panel 44 may be made of a metal.

The structure of the intermediate damper 40 is merely an example, and any type of structure can be used so long as it can functionally selectively communicate the outdoor air suction space 12a and the indoor air discharge space 14a with each other .

Further, the combined heat exchange ventilator according to the present invention includes sensor means for detecting the degree of contamination of outdoor air and indoor air for switching the operation mode as described later, and filter means for filtering outdoor air and indoor air suited to each operation mode .

A fine dust measuring sensor 50 for measuring the concentration of fine dust contained in the outdoor air sucked into the case 10 provided in the outside air suction space 12a in the case 10 as the sensor means, A noxious gas measurement sensor 52 for measuring the noxious gas concentration contained in the room air sucked into the inside air suction space 16a in the case 10 is provided.

A fine dust filtration filter 54 provided in the outside air suction space 12a in the case 10 for filtering fine dust contained in the sucked outdoor air, And a high-performance filtration filter 56 which is provided in the high-performance filter 18a and filters the air supplied to the room through the heat exchanger 20. [

As the high-performance filtration filter 56, a so-called multi-layer filter capable of filtering a harmful gas and a fine dust in combination can be used.

The combined heat exchange ventilator according to the present invention configured as described above is divided into three modes of ventilation mode, bypass mode, and recirculation mode. The operation of each mode will be described below.

First, in the ventilation mode, the arrangement angle of the flow path switching damper 34 is downwardly adjusted to open the upper surface of the chamber 32, and the lower surface is closed so that the bypass flow path 30a is blocked (see FIGS. The indoor air is sucked into the indoor air suction space 16a through the indoor air suction port 16 and discharged to the outside through the indoor air discharge port 14 through the heat exchanger 20 in the state where the damper 40 is closed. 4A)

In addition, outdoor air sucked into the outside air suction space 12a through the outside air suction port 12 is also heat-exchanged with indoor air while passing through the heat exchanger 20, and then supplied to the room through the outside air supply port 18 do.

This ventilation mode can be regarded as a basic operation mode normally performed by the heat exchange ventilator. At this time, outdoor air introduced into the case 10 passes through the fine dust filtration filter 54, Contaminants such as fine dust or yellow dust are filtered and then supplied to the room.

In the bypass mode, the arrangement angle of the flow path switching damper 34 is upwardly adjusted so that the upper surface of the chamber 32 is closed and the lower surface is opened, whereby the bypass flow path 30a is opened (see eh 3a and 3b) The indoor air flows into the bypass flow path 30a through the indoor air suction port 16 and is discharged to the outside through the indoor air discharge port 14 without passing through the heat exchanger 20. [ (See FIG. 4B)

At this time, the outdoor air sucked into the case (10) through the outdoor air suction port (12) is supplied to the room through the outdoor air supply port (18) through the heat exchanger (20).

In the bypass mode, since the outdoor air supplied to the indoor space and the indoor air discharged to the outdoor space are not exchanged with each other, they are useful modes for simple ventilation in the heat exchanger which does not require a heat exchange function.

In the bypass mode, since the outdoor air supplied to the indoor side passes through the fine dust filter 54, the filtering action of the contaminant is performed in the same manner as the ventilation mode.

In the recirculation mode, the intermediate damper 40 is opened and the opening / closing damper of the outdoor air suction port 12 and the indoor air discharge port 14 are closed with the bypass flow path 30a opened as in the bypass mode.

The indoor air sucked into the case 10 through the indoor air suction port 16 flows into the indoor air discharge space 14a through the bypass flow path 30a without passing through the heat exchanger 20, Flows into the outside air suction space 12a through the damper 40 and is supplied to the room through the outside air supply port 18 through the heat exchanger 20 (see FIG.

In the recirculation mode, outdoor air does not flow into the room as described above, and indoor air circulates. As a result, outside pollutants are prevented from entering the room, thereby preventing the room air from being further contaminated. The filter 54 and the high-performance filtration filter 56 are repeatedly filtered to improve the cleanliness of the room air.

Meanwhile, in the recirculation mode, the room air introduced into the case through the indoor suction port is not flowed to the bypass flow path 30a but flows through the indoor air suction space through the heat exchanger, and then flows through the outdoor air suction space from the indoor air discharge space again to the heat exchanger In this case, since the room air introduced into the case passes through the heat exchanger again, the ventilation resistance is increased and the life of the heat exchanger is shortened.

The combined heat exchange ventilator according to the present invention can be suitably used in a so-called fixed operation mode in which each operating mode is selected and maintained by the user's judgment regardless of a change in external environmental factors, Each operating mode can be activated by an automatic switching method that is automatically switched.

The operating logic of the automatic switching system may be variously configured according to the switching criteria between the operating modes. For example, the outdoor operating system may include outdoor pollutants (dust, fine dust, etc.) measured by the fine dust measuring sensor 50 ) And the concentration of indoor harmful substances (CO2, radon, etc.) measured by the noxious gas side sensor.

That is, when the fine dust concentration of the outdoor air flowing into the case (10) through the outside air intake port (12) is equal to or higher than the reference value even if the ventilation mode is operated in the season where fine dust or yellow dust is heavy as in spring, By sensing this situation by the sensor 50, it can be switched to the recirculation mode and operated.

On the other hand, in order to prevent the indoor temperature from being lowered due to ventilation during the season in which the temperature is low as in the winter season, it is operated in the recirculation mode and the indoor air (air) introduced into the case 10 through the indoor air suction port 16 The noxious gas measuring sensor 52 detects the state of the noxious gas so that it can be switched to the ventilation mode.

When the ventilation mode is entered, the outdoor air flows into the room, and the indoor air is discharged to the outside, so that the harmful gas in the room is also discharged to the outside. When the harmful gas is discharged and the concentration of the harmful gas in the room is lowered, Thereby preventing heat loss due to the unnecessary maintenance of the ventilation mode.

10: Case 12: outside air intake port
12a: outside air suction space 14: exhaust port
14a: Bleed exhaust space 16: Bleed intake port
16a: Air suction space 18: Outdoor air supply port
18a: outside air supply space 20: heat exchanger
30: bypass cover 32: chamber
34: flow path switching damper 40: intermediate damper
42: Frame type frame 44: Door panel
50: fine dust measuring sensor 52: harmful gas measuring sensor
54: Fine dust filtration filter 56: High performance filtration filter

Claims (6)

An outdoor air intake port communicating with the outdoor air intake port, an indoor air discharge space communicating with the indoor air discharge port, an indoor air discharge port communicating with the indoor air discharge port, An air suction space communicated with the indoor air suction port, and a case configured inside the outdoor air supply space communicating with the outdoor air supply port;
A heat exchanger provided in the case;
A suction blower that sucks outdoor air into the case and supplies the outdoor air to the indoor side; an exhaust blower that sucks indoor air into the case and discharges the outdoor air to the outdoor side;
A bypass cover formed below the heat exchanger in the case to constitute a bypass flow passage for allowing the inside air suction port and the inside air discharge port to communicate without passing through the heat exchanger;
Bypass means for selectively allowing the inside air intake port and the bypass passage to communicate with each other;
An intermediate damper provided between the outside air suction space and the inside air discharge space in the case to selectively communicate the outside air suction space and the inside air discharge space,
And a second heat exchanger.

The apparatus according to claim 1, wherein the bypass means
A chamber provided in the inside air suction space in the case for connecting the inside air suction port to the bypass air passage and the inside air suction space,
And the flow path switching damper is provided in the chamber to change the arrangement angle thereof so that the inner suction space and the bypass flow path selectively communicate with each other,
And a second heat exchanger.
The method according to claim 1,
A fine dust measuring sensor for measuring the concentration of fine dust contained in the outdoor air sucked into the case,
And a second heat exchanger.
The method according to claim 1,
A noxious gas measurement sensor for measuring the noxious gas concentration contained in the room air sucked into the case
And a second heat exchanger.
The method of claim 3,
And a fine dust filtration filter provided in the outside air suction space in the case to filter fine dust contained in the sucked outdoor air.
6. The method of claim 5,
And a high-performance filtration filter provided in the outside-air supply space in the case to filter air supplied to the room through a heat exchanger.

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